Home / 670,147.52-1,005,294.78-290,807.51

Finding the Fourth Proportional to 670,147.52, 1,005,294.78 and 290,807.51

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Solution

The fourth proportional to 670,147.52, 1,005,294.78 and 290,807.51 is: 436,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,147.52 : 1,005,294.78 = 290,807.51 : x
  2. Step 2: Convert to fraction form
    670,147.52/1,005,294.78 = 290,807.51/x
  3. Step 3: Cross multiply
    670,147.52x = 1,005,294.78 × 290,807.51
  4. Step 4: Simplify right side
    670,147.52x = 292,347,266,761.32
  5. Step 5: Solve for x
    x = 292,347,266,761.32/670,147.52
  6. Step 6: Final answer
    x = 436,243.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.